.htaccess manual redirects followed by a general everything else redirect to another domain -

i trying lot of manual redirects followed rule redirect else isn't covered manual redirect.

i have written lot of rules following structure shown below:

redirect 301 /articles/1/1/1.htm http://newdomain.com/relevant-page/relevant-inner-page/ 

i need finish off general redirect redirect other pages not covered root of new domain.

any or suggestions appreciated!

i found easiest way php redirect in header of website. works me no problems!